Systems and Infrastructure Engineer III

The Mainframe ISV Associate is responsible for supporting, maintaining, and enhancing independent software vendor products on the z/OS mainframe platform. This role involves collaborating with internal teams, vendors, and customers to ensure reliable operation, compliance, and integration of ISV solutions within Walmart's mainframe environment.

About the team:
The Independent Software Vendor (ISV) team manages essential third-party software supporting operations, security, data handling, scheduling, and connectivity. They oversee software setup, configuration, upgrades, and vendor collaboration to ensure consistent implementation aligned with enterprise standards. The team emphasizes risk reduction through clear ownership, access controls, documentation, and compliance adherence. Acting as a liaison among engineering, security, audit, and vendors, they enhance issue resolution, proactively address vulnerabilities, and support audit readiness.

Their efforts ensure stable, secure, and reliable software that protects critical systems and sustains uninterrupted enterprise operations.

• Expertise in z/OS ISV lifecycle management, including onboarding, upgrades, configuration management, decommissioning, and vendor coordination.
• Experience supporting complex z/OS and Parallel Sysplex environments, including maintenance, performance monitoring, and issue resolution.
• Strong troubleshooting, escalation, and solution evaluation skills.
• Knowledge of security, compliance, access governance, vulnerability remediation, and audit readiness.
• Proficient in JCL, TSO, REXX, Python, and SQL automation.
• Experience using AI-assisted tools for observability, incident analysis, anomaly detection, documentation, and automation.
• Hands-on experience with key ISV products, including BMC, Compuware, Control-M, Mobius, Connect Direct, Tectia SSH, SAS, and MXG.
• Available for on-call support and incident resolution.

• Experience with infrastructure maintenance and performance monitoring.
• Strong coding skills adhering to industry standards, with knowledge of languages such as JCL, REXX, Python, and SQL.
• Expertise in configuration, version, and release management processes.
• Ability to analyze and resolve technical issues for moderately complex projects.
• Understanding of infrastructure design principles, including scalability, disaster recovery, and security frameworks.
• Proven vendor management or ISV tool lifecycle experience, including onboarding, upgrades, licensing, and decommissioning.
• Excellent troubleshooting and incident response skills, with the ability to drive cross-team coordination.
• Familiarity with mainframe security, access control, and change management standards.
• Experience with z/OS mainframe environments and ISV products.
• Strong troubleshooting and communication skills.
• Ability to work collaboratively.

At Walmart, we offer competitive pay as well as performance-based bonus awards and other great benefits for a happier mind, body, and wallet. Health benefits include medical, vision and dental coverage. Financial benefits include 401(k), stock purchase and company-paid life insurance. Paid time off benefits include PTO (including sick leave), parental leave, family care leave, bereavement, jury duty, and voting. Other benefits include short-term and long-term disability, company discounts, Military Leave Pay, adoption and surrogacy expense reimbursement, and more.

You will also receive PTO and/or PPTO that can be used for vacation, sick leave, holidays, or other purposes. The amount you receive depends on your job classification and length of employment. It will meet or exceed the requirements of paid sick leave laws, where applicable. For information about PTO,  Live Better U…